研究了单位球上调和Dirichlet空间上的分式线性复合算子的伴随表示,并在此基础上讨论了空间Dh(BN)和Dh0(BN)上的分式线性复合算子的正常性与本性正常性.
In this paper we study the adjoint of linear fractional composition operators on the harmonic Dirichlet space in the unit ball, and discuss their normality and essential normality on Dh (BN) and Dk0 (BN) .